Separator for electrochemical cells

Patent · Tue Dec 27 04:00:00 EST 1988

OSTI ID:6048109

Griffin, R A

An electrochemical cell is described comprising a sealed casing; an anode, a cathode, a separator positioned between the anode and the cathode, and a non-aqueous electrolyte sealed in the casing; a pair of electrical terminals on the casing; means for electrically isolating the electrical terminals from each other; and means for electrically connecting the anode to one terminal and the cathode to the other terminal; wherein the anode is comprised of lithium foil, the cathode is comprised of manganese dioxide, and the separator consists essentially of a microporous polypropylene film having a thickness of about 1.5 mils and internal voids of about 60% by volume; wherein the anode, cathode, and separator are spirally wound together in a jelly roll configuration.

• Assignee: Duracell Inc., Bethel, CT
• Patent Number(s): US 4794057
• OSTI ID: 6048109
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
250903* -- Energy Storage-- Batteries-- Materials
Components
& Auxiliaries
ALKALI METALS
ANODES
BATTERY SEPARATORS
CATHODES
CHALCOGENIDES
CONFIGURATION
DESIGN
ELECTRIC BATTERIES
ELECTRIC CONTACTS
ELECTRICAL EQUIPMENT
ELECTROCHEMICAL CELLS
ELECTRODES
ELECTROLYTES
ELEMENTS
EQUIPMENT
FOILS
LITHIUM
MANGANESE COMPOUNDS
MANGANESE OXIDES
METALS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
OXIDES
OXYGEN COMPOUNDS
POLYMERS
POLYOLEFINS
POLYPROPYLENE
POROSITY
SEALS
SPIRAL CONFIGURATION
TRANSITION ELEMENT COMPOUNDS
VOIDS